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Radeon HD 7790 vs Radeon RX 560

Intro

The Radeon HD 7790 features core clock speeds of 1000 MHz on the GPU, and 1500 MHz on the 1024 MB of GDDR5 memory. It features 896 SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

Compare those specs to the Radeon RX 560, which has a core clock frequency of 1175 MHz and a GDDR5 memory frequency of 7000 MHz. It also features a 128-bit bus, and uses a 14 nm design. It is comprised of 1024 SPUs, 64 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560 80 Watts
Radeon HD 7790 85 Watts
Difference: 5 Watts (6%)

Memory Bandwidth

In theory, the Radeon RX 560 is 19% faster than the Radeon HD 7790 overall, because of its higher bandwidth. (explain)

Radeon RX 560 114688 MB/sec
Radeon HD 7790 96000 MB/sec
Difference: 18688 (19%)

Texel Rate

The Radeon RX 560 should be quite a bit (about 34%) faster with regards to AF than the Radeon HD 7790. (explain)

Radeon RX 560 75200 Mtexels/sec
Radeon HD 7790 56000 Mtexels/sec
Difference: 19200 (34%)

Pixel Rate

The Radeon RX 560 should be a small bit (about 18%) more effective at AA than the Radeon HD 7790, and should be able to handle higher resolutions while still performing well. (explain)

Radeon RX 560 18800 Mpixels/sec
Radeon HD 7790 16000 Mpixels/sec
Difference: 2800 (18%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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Radeon HD 7790

Amazon.com

Check prices at:

Radeon RX 560

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon HD 7790 Radeon RX 560
Manufacturer AMD AMD
Year March 2013 May 2017
Code Name Bonaire XT Baffin
Memory 1024 MB 4096 MB
Core Speed 1000 MHz 1175 MHz
Memory Speed 6000 MHz 28000 MHz
Power (Max TDP) 85 watts 80 watts
Bandwidth 96000 MB/sec 114688 MB/sec
Texel Rate 56000 Mtexels/sec 75200 Mtexels/sec
Pixel Rate 16000 Mpixels/sec 18800 Mpixels/sec
Unified Shaders 896 1024
Texture Mapping Units 56 64
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 14 nm
Transistors 2080 million 3000 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.1 DirectX 12.0
OpenGL Version OpenGL 4.3 OpenGL 4.6

Memory Bandwidth: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be transported past the external memory interface in one second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

Radeon HD 7790

Amazon.com

Check prices at:

Radeon RX 560

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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